update to aether-roc-api image 0.8.8 and sdcore-adapter image 0.2.4

Change-Id: I229fcb89f2c708b1ee614d69c90df241b461c085
diff --git a/aether-roc-api/values.yaml b/aether-roc-api/values.yaml
index 08f0fe4..23fdee7 100644
--- a/aether-roc-api/values.yaml
+++ b/aether-roc-api/values.yaml
@@ -10,7 +10,7 @@
 
 image:
   repository: onosproject/aether-roc-api
-  tag: v0.8.7
+  tag: v0.8.8
   pullPolicy: IfNotPresent
   pullSecrets: []